On Mar 5, 2006, at 1:01 AM, sam wrote:David Treadwell wrote: exp(x) is implemented by:1. reducing x into the range |r| <= 0.5 * ln(2), such that x = k *ln(2) + r2. approximating exp(r) with a fifth-order polynomial,3. re-scaling by multiplying by 2^k: exp(x) = 2^k * exp(r)sinh(x) is mathematica
David Treadwell wrote:
> exp(x) is implemented by:
>
> 1. reducing x into the range |r| <= 0.5 * ln(2), such that x = k *
> ln(2) + r
> 2. approximating exp(r) with a fifth-order polynomial,
> 3. re-scaling by multiplying by 2^k: exp(x) = 2^k * exp(r)
>
> sinh(x) is mathematically ( exp(x) - e
I wish I knew!
So I asked Google. Here's what I learned:
Most implementations are based on, or similar to the implementation
in the fdlibm package.
sinh(x) and cosh(x) are both based on exp(x). See http://
www.netlib.org/cgi-bin/netlibfiles.pl?filename=/fdlibm/e_sinh.c
exp(x) is implemented
David I beg I beg
Can you answer the question?
Also thanks for the information on using the Taylor series.
Sam Schulenburg
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On Mar 4, 2006, at 4:33 PM, Paul Rubin wrote:
> "sam" <[EMAIL PROTECTED]> writes:
>> Hello all, I am taking a class in scientific programming at the local
>> college. My problem is that the following difference produces
>> round off
>> errors as the value of x increases. For x >= 19 the diferenc
"sam" <[EMAIL PROTECTED]> writes:
> Hello all, I am taking a class in scientific programming at the local
> college. My problem is that the following difference produces round off
> errors as the value of x increases. For x >= 19 the diference goes to
> zero.I understand the problem, but am curious
Hello all, I am taking a class in scientific programming at the local
college. My problem is that the following difference produces round off
errors as the value of x increases. For x >= 19 the diference goes to
zero.I understand the problem, but am curious as to whether their
exists a solution. I
